But as for Michael, in between the time of GF II and III, became legit and it can be argued this was in part due to the events of GF II, like some negative conditioning (abortion of his kid) by Kay and the fact that she was so adamimant. Vito regardless of his intentions never followed though or became legit, and it can be argue this is ebcause of the war and the events, but he didn't encorage Micahel to become legit either. So I think if he he remained with Apollonia, he may have lightened up a bit, he still wouldnt' have had the incentive to become legit.

You can then argue that Anthony would have been more attracted to the life and not become a musician.